diff --git a/.changeset/tidy-dancers-act.md b/.changeset/tidy-dancers-act.md
new file mode 100644
index 000000000000..abe7895da123
--- /dev/null
+++ b/.changeset/tidy-dancers-act.md
@@ -0,0 +1,5 @@
+---
+'astro': patch
+---
+
+Fix a regression where a port was incorrectly added to the `Astro.url`
diff --git a/packages/astro/src/core/app/node.ts b/packages/astro/src/core/app/node.ts
index 87ef2a0defad..3ad965cd08c6 100644
--- a/packages/astro/src/core/app/node.ts
+++ b/packages/astro/src/core/app/node.ts
@@ -83,13 +83,12 @@ export class NodeApp extends App {
 		const hostname = forwardedHostname ?? req.headers.host ?? req.headers[':authority'];
 
 		// @example "443,8080,80" => "443"
-		const forwardedPort = getFirstForwardedValue(req.headers['x-forwarded-port']);
-		const port =
-			forwardedPort ?? req.socket?.remotePort?.toString() ?? (isEncrypted ? '443' : '80');
+		const port = getFirstForwardedValue(req.headers['x-forwarded-port']);
 
 		const portInHostname = typeof hostname === 'string' && /:\d+$/.test(hostname);
-		const hostnamePort = portInHostname ? hostname : `${hostname}:${port}`;
-
+		const hostnamePort = portInHostname ? hostname : `${hostname}${port ? `:${port}` : ''}`;
+		
+		
 		const url = `${protocol}://${hostnamePort}${req.url}`;
 		const options: RequestInit = {
 			method: req.method || 'GET',